It takes under 10 minutes to reload the Warthog’s 30mm cannon with 1,350 rounds—but those shell casings? They’re not just spent ammo, they’re ballast. From titanium armor “bathtubs” to off-center ...

72 years ago the U.S. Army carried out its first and only nuclear artillery test. The military actually made an atomic artillery shell, loaded it into a 280mm cannon and fired it. And it worked. Task ...